Damage Analysis of the Bridge Structure Based on the Modal Parameters

Ke Ding

doi:10.4028/www.scientific.net/AMR.255-260.1034

Paper Titles

Stability Analysis of Xiwu Road Steel Box Arch Bridge in Zibo City
p.1012

Anti-Shear Reliability Analysis of Existing Pre-Tensioned Prestressed Concrete Beam Bridges under Atmosphere Condition
p.1017

Stochastic Analysis of Prestressed Concrete Cable-Stayed Bridges Considering Construction Errors
p.1023

Bearing Simulation in Seismic Response Analysis of a Multi-Span Continuous Girder Bridge
p.1029

Damage Analysis of the Bridge Structure Based on the Modal Parameters
p.1034

Cable Deflection and Gravity Stiffness of Cable-Stayed Suspension Bridge
p.1039

Study on the Construction Control of Long-Span V-Shape Rigid Frame Composite Arch Bridges
p.1043

The Rehabilitation Project of Highland Road Tunnel
p.1048

Overall and Step Iterative Algorithm of Cable Force for Multi-Rib Steel Truss Arch Bridge in Procedure of Rib Segments Assembling
p.1052

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260Damage Analysis of the Bridge Structure Based on...

Damage Analysis of the Bridge Structure Based on the Modal Parameters

Abstract:

Reduction of intensity or rigidity and losses of quality of the bridge structures can induce the changes of modal parameters of the structure. It is possible to analyze and detect the damage of bridge based on comparing the changes of modal parameters of the structure before and after damaging. Natural frequency, displacement mode and modal curvature are the important parameters in dynamic Analysis. In this paper, their adaptive capacities to bridge damage assessment are discussed. And the damage factor is used to determine the damage location. Model experiments show that the damage factor not only reflects the position of bridge damage, and the damage factor of some vibration mode also indicates the length of damage element. At the equilibrium position of the vibration mode, it is difficult to determine structural damage using the damage factor.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

1034-1038

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.1034

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Online since:

May 2011

Authors:

Ke Ding

Keywords:

Bridge, Damage Factor, Modal Curvature Difference, Modal Parameter, Vibration Mode

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